Shikoku proportional representation block

Shikoku Proportional Representation Block
Parliamentary constituency
for the Japanese House of Representatives
Map of House of Representatives proportional blocks, with the Shikoku block highlighted
PrefecturesEhime, Kagawa, Kōchi, and Tokushima
Electorate3,073,592 (2024)
Current constituency
Representatives6

The Shikoku proportional representation block (Hirei [daihyō] Shikoku burokku (比例[代表]四国ブロック)) is one of eleven proportional representation (PR) "blocks", multi-member constituencies for the House of Representatives in the Diet of Japan. It consists of Shikoku region covering Tokushima, Kagawa, Ehime and Kōchi Prefectures. Following the introduction of proportional voting it elected seven representatives in the 1996 general election. When the total number of PR seats was reduced from 200 to 180, the Shikoku PR block shrank to six seats.

Results timeline

Vote share

Party 1996 2000 2003 2005 2009 2012 2014 2017 2021 2024
LDP 41.61 35.97 38.23 38.29 31.98 30.66 34.85 35.92 39.14 31.01
NFP 24.18
DPJ[a] 13.03 20.66 31.74 33.17 43.23 16.05 20.82
JCP 12.06 10.97 8.04 8.20 6.67 5.78 10.12 7.37 6.36 5.70
SDP 7.06 10.08 5.30 5.55 4.20 2.31 2.12 1.85 1.78 1.57
Komeito 13.70 16.69 14.80 13.03 14.97 15.78 14.69 13.74 12.72
LP 8.35
Ishin[b] 21.32 12.79 4.87 10.23 6.67
Your 5.03
TPJ 3.45
KnT 20.10
CDP 14.45 17.18 18.17
DPFP 7.19 15.09
Reiwa 3.12 6.20
Sanseitō 2.85
Others 2.07[c] 0.27[d] 0.87[e] 0.44[f] 3.52[g] 0.77[h] 1.25[i]
Turnout 61.87 57.64 66.11 69.96 57.99 49.70 50.70 55.48 51.98

Seat distribution

Election Distribution Seats
1996               7
2000             6
2003             6
2005             6
2009             6
2012             6
2014             6
2017             6
2021             6
2024             6

List of representatives

Years Elected representatives
1996 Naoaki Haruna Masanori Gotō Kazuyoshi Endō Shōzō Nishimura Ihei Ochi
died 2000, replaced by
Akira Shichijō		 Mamoru Nishida Hajime Morita
2000 Naoaki Haruna Masanori Gotō Kazuyoshi Endō Mamoru Nishida Hajime Morita Akira Shichijō –
2003 Miho Takai Masanori Gotō Noritoshi Ishida Hajime Morita Yoshirō Okamoto Akira Shichijō
2005 Junya Ogawa Masanori Gotō
resigned 2005, replaced by
Miho Takai 		Noritoshi Ishida Akira Shichijō Yoshirō Okamoto Katsuko Nishimoto
2009 Hirobumi Niki Takako Nagae Hideyuki Takahashi Noritoshi Ishida Takuya Hirai Shun'ichi Yamaguchi
2012 Junya Ogawa Fumiki Sakurauchi Arata Nishioka Noritoshi Ishida Takakazu Seto Yasuji Izuhara
2014 Junya Ogawa Hiroyuki Yokoyama Noritoshi Ishida Teru Fukui Takakazu Seto Mamoru Fukuyama

Election results

2024

2024 results in the Shikoku PR block
Party Votes Swing % Seats +/–
Liberal Democratic Party (LDP) 479,835 31.01 Decrease8.13 3 Steady0
Constitutional Democratic Party of Japan (CDP) 281,209 18.17 Increase0.99 1 Steady0
Democratic Party For the People (DPFP) 233,515 15.09 Increase7.90 1 Increase1
Komeito 196,765 12.72 Decrease1.02 1 Steady0
Japan Innovation Party (Ishin) 103,237 6.67 Decrease3.56 0 Decrease1
Reiwa Shinsengumi (Reiwa) 95,973 6.20 Increase3.09 0 Steady0
Japanese Communist Party (JCP) 88,224 5.70 Decrease0.66 0 Steady0
Sanseitō 44,127 2.85 New 0 New
Social Democratic Party (SDP) 24,361 1.57 Increase0.21 0 Steady0
Total 1,547,246 100.00 6
Invalid votes 50,347 3.15
Turnout 1,597,593 51.98 Decrease3.50
Registered voters 3,073,592

2021

2021 results in the Shikoku PR block
Party Votes Swing % Seats +/–
Liberal Democratic Party (LDP) 664,805 39.14 Increase3.22 3 Steady0
Constitutional Democratic Party of Japan (CDP) 291,871 17.18 Increase2.74 1 Steady0
Komeito 233,407 13.74 Decrease0.95 1 Steady0
Japan Innovation Party (Ishin) 173,826 10.23 Increase5.37 1 Increase1
Democratic Party For the People (DPFP) 122,082 7.19 New 0 New
Japanese Communist Party (JCP) 108,021 6.36 Decrease1.01 0 Steady0
Reiwa Shinsengumi (Reiwa) 52,941 3.12 New 0 New
Social Democratic Party (SDP) 30,249 1.78 Decrease0.07 0 Steady0
NHK Party 21,285 1.25 New 0 New
Total 1,698,487 100.00 6
Invalid votes 62,480 3.55
Turnout 1,760,967 55.48 Increase4.78
Registered voters 3,174,258

2017

2017 results in the Shikoku PR block
Party Votes Swing % Seats +/–
Liberal Democratic Party (LDP) 579,225 35.92 Increase1.07 3 Steady0
Kibō no Tō 324,106 20.10 New 1 New
Komeito 236,863 14.69 Decrease1.09 1 Steady0
Constitutional Democratic Party of Japan (CDP) 232,965 14.45 New 1 New
Japanese Communist Party (JCP) 118,826 7.37 Decrease2.75 0 Steady0
Japan Innovation Party (Ishin) 78,500 4.87 New 0 New
Social Democratic Party (SDP) 29,818 1.85 Decrease0.27 0 Steady0
Happiness Realization Party (HRP) 12,356 0.77 Increase0.08 0 Steady0
Total 1,612,659 100.00 6
Invalid votes 46,262 2.79
Turnout 1,658,921 50.70 Increase1.00
Registered voters 3,272,184

2014

2014 results in the Shikoku PR block
Party Votes Swing % Seats +/–
Liberal Democratic Party (LDP) 547,185 34.85 Increase4.20 3 Increase1
Democratic Party of Japan (DPJ) 326,803 20.82 Increase4.77 1 Steady0
Komeito 247,776 15.78 Increase0.82 1 Steady0
Japan Innovation Party (JIP) 200,882 12.79 Decrease8.52 1 Decrease1
Japanese Communist Party (JCP) 158,848 10.12 Increase4.34 0 Steady0
Party for Future Generations 44,515 2.84 New 0 New
Social Democratic Party (SDP) 33,257 2.12 Decrease0.19 0 Steady0
Happiness Realization Party (HRP) 10,762 0.69 Increase0.24 0 Steady0
Total 1,570,028 100.00 6
Invalid votes 49,834 3.08
Turnout 1,619,862 49.70 Decrease8.29
Registered voters 3,259,284

2012

2012 results in the Shikoku PR block
Party Votes Swing % Seats +/–
Liberal Democratic Party (LDP) 567,193 30.66 Decrease1.33 2 Steady0
Japan Restoration Party (JRP) 394,393 21.32 New 2 New
Democratic Party of Japan (DPJ) 296,914 16.05 Decrease27.20 1 Decrease2
Komeito 276,907 14.97 Increase1.94 1 Steady0
Japanese Communist Party (JCP) 106,976 5.78 Decrease0.89 0 Steady0
Your Party 93,090 5.03 New 0 New
Tomorrow Party of Japan (TPJ) 63,830 3.45 New 0 New
Social Democratic Party (SDP) 42,762 2.31 Decrease1.89 0 Steady0
Happiness Realization Party (HRP) 8,171 0.44 Decrease0.43 0 Steady0
Total 1,850,236 100.00 6
Invalid votes 58,365 3.06
Turnout 1,908,601 57.99 Decrease11.97
Registered voters 3,291,313

2009

2009 results in the Shikoku PR block
Party Votes Swing % Seats +/–
Democratic Party of Japan (DPJ) 973,038 43.24 Increase10.08 3 Increase1
Liberal Democratic Party (LDP) 719,594 31.98 Decrease6.31 2 Decrease1
Komeito 293,204 13.03 Decrease1.77 1 Steady0
Japanese Communist Party (JCP) 150,171 6.67 Decrease1.53 0 Steady0
Social Democratic Party (SDP) 94,558 4.20 Decrease1.35 0 Steady0
Happiness Realization Party (HRP) 19,507 0.87 New 0 New
Total 2,250,072 100.00 6
Invalid votes 83,071 3.56
Turnout 2,333,143 69.96 Increase3.85
Registered voters 3,334,875

2005

2005 results in the Shikoku PR block
Party Votes Swing % Seats +/–
Liberal Democratic Party (LDP) 821,746 38.29 Increase0.06 3 Steady0
Democratic Party of Japan (DPJ) 711,927 33.17 Increase1.43 2 Steady0
Komeito 317,575 14.80 Decrease1.90 1 Steady0
Japanese Communist Party (JCP) 175,994 8.20 Increase0.16 0 Steady0
Social Democratic Party (SDP) 119,089 5.55 Increase0.24 0 Steady0
Total 2,146,331 100.00 6
Invalid votes 85,434 3.83
Turnout 2,231,765 66.11 Increase8.48
Registered voters 3,375,693

2003

2003 results in the Shikoku PR block
Party Votes Swing % Seats +/–
Liberal Democratic Party (LDP) 708,051 38.23 Increase2.26 3 Steady0
Democratic Party of Japan (DPJ) 587,828 31.74 Increase11.08 2 Increase1
Komeito 309,160 16.69 Increase3.00 1 Steady0
Japanese Communist Party (JCP) 148,953 8.04 Decrease2.93 0 Decrease1
Social Democratic Party (SDP) 98,243 5.30 Decrease4.77 0 Steady0
Total 1,852,235 100.00 6
Invalid votes 92,906 4.78
Turnout 1,945,141 57.64 Decrease4.24
Registered voters 3,374,840

2000

2000 results in the Shikoku PR block
Party Votes Swing % Seats +/–
Liberal Democratic Party (LDP) 700,719 35.97 Decrease5.64 3 Steady0
Democratic Party of Japan (DPJ) 402,457 20.66 Increase7.63 1 Steady0
Komeito 266,791 13.70 New 1 New
Japanese Communist Party (JCP) 213,729 10.97 Decrease1.08 1 Steady0
Social Democratic Party (SDP) 196,277 10.08 Increase3.02 0 Steady0
Liberal Party (LP) 162,700 8.35 New 0 New
Liberal League (LL) 5,316 0.27 New 0 New
Total 1,947,989 100.00 6 Decrease1
Invalid votes 128,824 6.20
Turnout 2,076,813 61.87
Registered voters 3,356,478

1996

1996 results in the Shikoku PR block
Party Votes % Seats
Liberal Democratic Party (LDP) 783,589 41.61 3
New Frontier Party (NFP) 455,269 24.18 2
Democratic Party (DP) 245,323 13.03 1
Japanese Communist Party (JCP) 227,014 12.06 1
Social Democratic Party (SDP) 132,868 7.06 0
New Socialist Party (NSP) 39,067 2.07 0
Total 1,883,130 100.00 7

References

Notes

  1. ^ 1996 DP
  2. ^ 2012 JRP, 2014 JIP
  3. ^ NSP 2.07
  4. ^ LL 0.27
  5. ^ HRP 0.87
  6. ^ HRP 0.44
  7. ^ Generations 2.84, HRP 0.69
  8. ^ HRP 0.77
  9. ^ NHK 1.25
allikas: https://en.wikipedia.org/wiki/Shikoku_proportional_representation_block